Fire kindler



May 30, .1933. W E, PFEFFER 1,912,302

FIRE KINDLER Filed Nov. 2, 1951 lNvvENToR Patented May 30, 1933 UNITEDSTATES WILLIAM EMIL PFEFFER, OF PHILADELPHIA, PENNSYLVANIA FIRE KINDLERApplication led November This invention relates to an improved devicefor lighting various coals in furnaces, and particularly those of theliner grade.

The essential purpose of the invention is to provide a device of thiskind which nis self-supportingl within the ash pit below the grate andhaving connection with the usual gas line of a building, so that afterlighting the burners of the device, the blue flame preferably tippedyellow will pass through the grate bars and thereby cause ignition ofthe coal bed. The device can also be used in connection with a fire, ofwhich the coals have become substantially deadened, by first lightingthe burners, and then placing same in the ash pit below the grate bars.

Another purpose is to provide a device having means to engage with theash pit door opening, in order to render the igniter self-supporting aswell as easily detachable.

A still further purpose is to provide an improved burner for use inconnection with the igniter, comprising a body provided with oppositeopenings or rather a through passage transversely of the body, includinga nipple, and a burner. tube connected to the nipple, the constructionand arrangement of the parts of the burner being such as to create ablue flame, one preferably tipped with yellow, as best results have beenattained with this character of flame.

It is to be understood that the particulars herein given are in no waylimitative, and vthat while still keeping Within the scope of theinvention, any desired modification of details and proportions may bemade in the construction of the appliance according to circumstances.

The invention comprises further features and combination of parts to behereinafter set forth, shown in the drawing and claimed.

In the drawing Figure 1 is a view of a portion of a furnace,illustrating the ash pit thereof and the grate bars, and a portion ofthe fire bed, illustrating the improved coal igniter applied.

Figure 2 is a perspective view of the iniproved igniter, showing themeans for ren- 2, 1931. Serial No. 572,660.

dering the same self-supporting in the ash pit.

Figure 3 is a vertical sectional view through one of the burners proper.

Referring to the drawing 1 identifies a portion of a furnace having afire bed chamber 2 and an ash pit, there being the usual grate bars 4located in the fire bed chamber.

Arranged in position in conjunction` with the kash pit door opening 5 ofthe furnace is the igniter, which comprises a feed pipe 6 having acouplev 7, to which a flexible metal tubing or hose 8 may be connectedfor supplying a supply of gas to the feed pipe 6. This couple has aconventional valve 9 for turning on and turning off of thegas. The gasmay be derived from anysuitable source, preferably from city servicelines (not shown), and which passes through the feed pipe 6 and throughthe lateral branch pipes P 10 and 11. The lateral branch pipes 10 areconnected to the feed pipe 6 of a four way union 12, while the lateralpipes 11 are connected to the feed pipe 6 by a T 13. Conr nected to theextremities of the lateral pipes 10 and 11 arey elbows '14, to which theburners 15 are connected as shown at 16. Each of the burners, as shownin Figure 3 comprises a body 17, which has a threaded extension 18 forengagement into the elbow 14. A contracted opening 19 connects thepassage 20 of the extension 18 with a relatively large transverseopening 21 formed in the body 17 of the burner. This opening 21 permitsof air to be drawn into the body from lateral directions for mixturewith the gas supply passing across the opening 21. Threaded into theupper end of the body 17 is a nipple 22, to which the burner tubesproper 23 are connected. It is obvious that the body 17 of the burnerand the nipple 22 as well as the burner tube 23 may be constructed in asolid formation, which will permit the burner to be cast, if it is sodesired. The contracted opening` 19 is substantially smaller in diameterthan the passage through the center. of the nipple and through theburner tube, and in passing create an entraining action on the air,which will mix with the gas and more or less volitalize the same,

and thereby produce the desired and proper combustion when ignited atthe outlets 24 of the burner tubes. When ignited at the burner outletopenings 24 ablue flame. preferably yellow tipped will be created whichwill pass through the grate bars of the furnace, it being obvious thatthe burner tubes may be lpositioned so that the fiames Will pass throughthe transmission parts of the gra-te bars and thereby quickly ignite thecoals of the Afire bed.

In order to render the igniter self-supporting in the ash pit of thefurnace, a sheet metal plate 25 is provided, which is disposed to coverthe ash pit door opening 5 substantially. Spot Welded or otherwisefastened at 26 tothe outer face of the plate 25 is a collar 27, throughwhich the feed pipe 6 passes, there being a set screw 28 engaged throughthe collar for engagement against the exterior surface of the feedpipe 6for the purpose of holding the feed pipe in different adjusted positionsthrough the plate 25. In this manner the igniter may be adjusted inposition, so that the burner tubes proper may be positioned in order todirect the Hames through the transmission parts of the grate bars. Forinstance some furnaces are larger in diameter than in others and bymeans of the adjustability of the feed pipe 6, the burner tubes may bepositioned to direct the iiames in the proper directions.

The upper part of the plate 25 is formed with a curved overhand piece29, by whichthe support can be handled, for the purpose of arranging theigniter in its proper position. In order to insure rendering the igniterself-supporting, the lower edge portions of the plate 25 adjacent theiropposite corners have lugs or ears 30 struck up from the plate and bentangularly laterally, for the purpose of engaging over the lower edge ofthe ash pit door opening 5, in a manner as shownin Figure l forsupporting the igniter.

It is obvious that the burners located in the -ash pit are more or lessheavier than the outer end of the feed pipe 6, therefore the vtendencyof the burners proper to move downwardly, will cause a retention of theupper part of the plate 25 againstthe outer edge of the ash pit door,with the lugs or ears 30 engaged With the lower edge of the '1 ash pitdoor opening, the lugs or ears cooperate With the lower part of theplate which engages on thev outer odge at the low-V er portion of theash pit door opening, to

insure holding the supporter 25 in position, and thereby balance theIgniter in position.

The invention having been set forth, what is claimed is:

l 1. y As an article of manufacture, an igniter for coals in the firebox of furnaces, in-

lcluding a feed pipe extending into the ash pit and provided withburners on its inner end adapted to be located in the ash pit, asupporter for closing the ash pit door opening substantially andengaging the outer marginal edge of said opening, said supporter havingmeans for engaging the edge of the ash pit door opening, whereby theigniter is balanced in position with the supporter engaging the exteriorsurfaceA of the opening.

2.-In an igniterfor coals inthe fire box of furnaces, the combinationwith a feed Vpipe adapted to extend into an ash pit of the furnace andhaving burners at its inner end for directing a Haine through grate barsofthe furnace,.of a supportercomprising a plate to'engagev againstandexteriorly of4 an ash pit door opening of said furnaceV andl havingmeans for'adjustably supporting the feed pipe inthe plate, said platehaving means cooperativewith the. marginal edge of the ash pit dooropening, whereby thel igniter is rendered self-supporting anddetachable. E y 1 3. Inv an igniting burnerfor coals in a lire box of afurnace, the combination with a gas feed pipe extending intol an ash pitof said furnace providedrwith yburners at itsl inner end, of a supportercomprising a plate substantially .closing an ash` pit door lopening ofthe furnace, means fory supporting.y the feed pipe through the plate,andl means struck upfrom the plate and Aengagingin-Iy wardlyof and atthe bottom of the ash pitvA door opening for balancing the feed pipe andthe burnersselfsupporting in position.

l. In an igniting'burner for l,coals in a fire box of a furnace, thecombination with a feed pipe extending into an ash pitv of said furnaceandv carrying burners at its inner end, of asupp'orter comprisinga plateengaging with the marginal vouter edge of*I the ash pit dooropening andclosing ythe'l latter substantially,l the'feed pipe passingy through theplate, and lugs carried by the lower portion'of the plate andengaging'inwardly of the ash pit door opening at its' lower edge forbalancing the feed pipe and. the burnersl self-supporting in position'.

5. In an` igniting burner for coals `in` a fire box of a furnace, thecoinbinationwith' a feed 4'pipe extending into an ash'pit of saidfurnace and'having burners atits in-y ner end, of means forsubstantially closing an ash pit door open-ing of said furnace, saidmeans supporting the feed pipe -and including elements cooperative with'the marginal edge of the ash 'pit' door opening for rendering 'theigniting burner" self-supporting and balanced inposition.

In testimony whereof I` affix my signature.

WILLIAM EMIL PFEFFER QOL:

